【正文】 專業(yè)名稱 ： 機械設(shè)計及自動化 單片機全自動豆?jié){機的設(shè)計 摘要 論文針對 : 目前流行的智能豆?jié){機大都采用微電腦控制，只要啟動豆?jié){機，打漿、煮漿完全自動化，短短十幾分鐘就自動做好豆?jié){，既衛(wèi)生可靠，又快捷方便。 本文介紹的智能豆?jié){機系統(tǒng)由 MCS51 系列單片機、溫度傳感器、加熱電路、防溢電路、打漿電路、報警電路等組成，豆?jié){生產(chǎn)完全自動化。并從硬件及軟件兩方面去分析，進而設(shè)計改進，并通過 proe畫出的零件圖和整體裝配圖。 Abstract Thesis: most of the current popular microputer intelligent control of soybean milk, soybean milk as long as the start, beating, boiling syrup fully auto mated of, just ten minutes to automatically make soy milk, hygienic and reliable, and convenient. This article describes the system consists of Intelligent Soymilk MCS51 series microcontroller, temperature sensor, heating circuit, antioverflow circuit, beating circuits, alarm circuits and other ponents, milk production and fully automated. In view of its development process and historical background on DouJiangJi shortings and desirable place a detailed analysis. And from two aspects of hardware and software to analyze and design improvement, and through the proe draw the parts drawing and the whole assembly drawing. The anticipated results have finished Keywords: MCS51， soybean， milk machine， Appearance figure， software， hardwareIV 目錄 摘要 ............................................................................................................... II Abstract ........................................................................................................ III 目錄 .............................................................................................................. IV 1 緒論 ........................................................................................................ 2 豆?jié){機的歷史和現(xiàn)狀 ......................................................................... 2 豆?jié){機基本功能 .......................................................................... 5 豆?jié){機總體設(shè)計方案 ..................................................................... 6 基本原理 ..................................................................................... 6 總體方案設(shè)計 .................................................................................. 8 3 豆?jié){機的外形結(jié)構(gòu)設(shè)計 ..................................................................... 11 豆?jié){機的基本結(jié)構(gòu) ....................................................................... 11 杯體設(shè)計 ....................................................................................... 11 機頭 ............................................................................................... 11 底座設(shè)計 ....................................................................................... 12 小電機的選擇電機 ....................................................................... 13 刀片 ............................................................................................... 13 網(wǎng)罩 ............................................................................................... 14 4 豆?jié){機控制系統(tǒng)的硬件設(shè)計 ............................................................. 15 電源電路設(shè)計 .............................................................................. 15 電源的作用 ............................................................................ 15 電源的組成 ............................................................................ 15 電源工作原理 ........................................................................ 16 橋式整流電路簡介 ................................................................ 17 穩(wěn)壓器的選用 ........................................................................ 18 穩(wěn)壓器簡介 ............................................................................ 19 單片機全自動豆?jié){機的設(shè)計 單片機的選用及簡介 .................................................................. 21 單片機的選用 ......................................................................... 21 單片機的簡介 ........................................................................ 21 溫度檢測電路的設(shè)計 .................................................................. 25 NTC 熱敏電阻溫度傳感器簡介 ............................................ 25 ADC0809 簡介 ........................................................................ 29 放大器 LM324 簡介 ............................................................... 33 四分頻電路設(shè)計 .................................................................... 35 NTC 熱敏電阻與單片機 AT89C51 的接口設(shè)計 .................. 36 加熱及打漿電路的設(shè)計 .............................................................. 37 防干燒及防溢出電路的設(shè)計 ....................................................... 39 報警電路的設(shè)計 .......................................................................... 40 復(fù)位電路的設(shè)計 .......................................................................... 41 時鐘電路及按鍵設(shè)計 .................................................................. 41 5 豆?jié){機控制系統(tǒng)的軟件設(shè)計 .............................................................. 43 豆?jié){機控制系統(tǒng)的流程圖的設(shè)計 .................................................. 43 結(jié)論 ......................................................................................................... 46 致謝 ......................................................................................................... 48 參考文獻 ................................................................................................. 49 附錄 A 豆?jié){機控制系統(tǒng)硬件圖 ............................................................ 52 附錄 B 豆?jié){機控制系統(tǒng)程序清單 ........................................................ 53 1 前言 豆?jié){是一種老幼皆宜、價廉質(zhì)優(yōu)的液態(tài)營養(yǎng)品，它所含的鐵元素是牛奶的 6 倍，所含的蛋白質(zhì)雖不如牛奶高，但在人體內(nèi)的吸收率可達到 85%，因此有人稱豆?jié){為 “植物牛奶 ”。豆?jié){中 富含人體所需優(yōu)質(zhì)植物蛋白，八種必需的氨基酸，多種維生素及鈣、鐵、磷、鋅、硒等微量元素，不含膽固醇，并且含有大豆皂甙等至少五六種可有效降低人體膽固醇的物質(zhì)，鮮豆?jié){的大豆營養(yǎng)易于消化吸收，經(jīng)常飲用，對高血壓、冠心病，動脈粥樣硬化及糖尿病、骨質(zhì)疏松等大有益處，還具有平補肝腎、防老抗癌、降脂降糖、增強免疫的功效。 單片機全自動豆?jié){機的設(shè)計 2 1 緒論 1995 年北京電視臺的電視購物欄目就出現(xiàn)了豆?jié){機的身影，但由于眾多技術(shù)難題當時沒有被攻克，豆?jié){